제출 #497666

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
497666	2021-12-23 13:32:58	Hanksburger	기지국 (IOI20_stations)	C++17	100 / 100	998 ms	764 KiB

stations

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#include "stations.h"
#include <bits/stdc++.h>
using namespace std;
vector<int> adj[1005], ans;
int dfs(int U, int P, int cnt, bool X)
{
  if (X)
  {
    ans[U]=cnt;
    cnt++;
    for (int i=0; i<adj[U].size(); i++)
    {
      int V=adj[U][i];
      if (V!=P)
        cnt=dfs(V, U, cnt, 0);
    }
  }
  else
  {
    for (int i=0; i<adj[U].size(); i++)
    {
      int V=adj[U][i];
      if (V!=P)
        cnt=dfs(V, U, cnt, 1);
    }
    ans[U]=cnt;
    cnt++;
  }
  return cnt;
}
 
 
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컴파일 시 표준 에러 (stderr) 메시지

stations.cpp: In function 'int dfs(int, int, int, bool)':
stations.cpp:11:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   11 |   for (int i=0; i<adj[U].size(); i++)
      |                 ~^~~~~~~~~~~~~~
stations.cpp:20:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 |   for (int i=0; i<adj[U].size(); i++)
      |                 ~^~~~~~~~~~~~~~
stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:53:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |   for (int i=0; i<C.size(); i++)
      |                 ~^~~~~~~~~
stations.cpp:66:1: warning: control reaches end of non-void function [-Wreturn-type]
   66 | }
      | ^

• Subtask 1: 5 / 5
• Subtask 2: 8 / 8
• Subtask 3: 16 / 16
• Subtask 4: 10 / 10
• Subtask 5: 61 / 61